CA2229370A1 - Catheter - Google Patents

Catheter

Info

Publication number
CA2229370A1
CA2229370A1 CA002229370A CA2229370A CA2229370A1 CA 2229370 A1 CA2229370 A1 CA 2229370A1 CA 002229370 A CA002229370 A CA 002229370A CA 2229370 A CA2229370 A CA 2229370A CA 2229370 A1 CA2229370 A1 CA 2229370A1
Authority
CA
Canada
Prior art keywords
catheters
catheter
puncture needle
flexible
pretension
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002229370A
Other languages
French (fr)
Other versions
CA2229370C (en
Inventor
Marc Joshua Tolkoff
Fernando Alvarez De Toledo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ACT Medical Inc
Original Assignee
Act Medical, Inc.
Marc Joshua Tolkoff
Fernando Alvarez De Toledo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Act Medical, Inc., Marc Joshua Tolkoff, Fernando Alvarez De Toledo filed Critical Act Medical, Inc.
Publication of CA2229370A1 publication Critical patent/CA2229370A1/en
Application granted granted Critical
Publication of CA2229370C publication Critical patent/CA2229370C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/0043Catheters; Hollow probes characterised by structural features
    • A61M25/005Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06Body-piercing guide needles or the like
    • A61M25/0606"Over-the-needle" catheter assemblies, e.g. I.V. catheters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/0208Subcutaneous access sites for injecting or removing fluids

Abstract

The present invention relates to catheters for use with subcutaneous access ports for continuous or intermittent infusion therapy. These catheters utilize a pretension, helical coil (8) which is incorporated into a flexible cannulated portion (7). This feature allows the flexible cannula to be bent without kinking under normal use. This flexibility provides a great deal of comfort to the patient. These catheters also incorporate a puncture needle (2) which is positioned axially down the length of the catheter such that the sharp point at the distal end of the needle entends the distal end of the catheter. This combination of a pretension, flexible catheter and a puncture needle achieves a stiffness sufficient to penetrate the tough, self-sealing septum used in subcutaneous access ports, yet, once the puncture needle is removed the patient is left with a comfortable alternative to commonly used hypodermic needles. The present invention also relates to improved transcutaneous infusion systems which utilize these catheters.
CA002229370A 1995-08-14 1996-08-05 Catheter Expired - Fee Related CA2229370C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US514,945 1995-08-14
US08/514,945 US5607407A (en) 1994-05-09 1995-08-14 Catheter assembly
PCT/US1996/012689 WO1997006845A1 (en) 1995-08-14 1996-08-05 Catheter

Publications (2)

Publication Number Publication Date
CA2229370A1 true CA2229370A1 (en) 1997-02-27
CA2229370C CA2229370C (en) 2003-06-03

Family

ID=24049350

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002229370A Expired - Fee Related CA2229370C (en) 1995-08-14 1996-08-05 Catheter

Country Status (5)

Country Link
US (2) US5607407A (en)
EP (1) EP0844893A4 (en)
JP (1) JP3189974B2 (en)
CA (1) CA2229370C (en)
WO (1) WO1997006845A1 (en)

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Also Published As

Publication number Publication date
US5853394A (en) 1998-12-29
EP0844893A1 (en) 1998-06-03
WO1997006845A1 (en) 1997-02-27
JPH10511029A (en) 1998-10-27
US5607407A (en) 1997-03-04
JP3189974B2 (en) 2001-07-16
CA2229370C (en) 2003-06-03
EP0844893A4 (en) 2000-01-05

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